{"id":48554,"date":"2024-12-02T08:06:02","date_gmt":"2024-12-02T00:06:02","guid":{"rendered":"https:\/\/fwq.ai\/blog\/48554\/"},"modified":"2024-12-02T08:06:02","modified_gmt":"2024-12-02T00:06:02","slug":"php%e5%87%bd%e6%95%b0%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e9%80%92%e5%bd%92%e8%b0%83%e7%94%a8%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/48554\/","title":{"rendered":"PHP\u51fd\u6570\u5982\u4f55\u5b9e\u73b0\u9012\u5f52\u8c03\u7528\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP\u51fd\u6570\u5982\u4f55\u5b9e\u73b0\u9012\u5f52\u8c03\u7528\uff1f<\/h1>\n<p>\u7f16\u7a0b\u5e76\u4e0d\u662f\u4e00\u4e2a\u673a\u68b0\u6027\u7684\u5de5\u4f5c\uff0c\u800c\u662f\u9700\u8981\u6709\u601d\u8003\uff0c\u6709\u521b\u65b0\u7684\u5de5\u4f5c\uff0c\u8bed\u6cd5\u662f\u56fa\u5b9a\u7684\uff0c\u4f46\u89e3\u51b3\u95ee\u9898\u7684\u601d\u8def\u5219\u662f\u4f9d\u9760\u4eba\u7684\u601d\u7ef4\uff0c\u8fd9\u5c31\u9700\u8981\u6211\u4eec\u575a\u6301\u5b66\u4e60\u548c\u66f4\u65b0\u81ea\u5df1\u7684\u77e5\u8bc6\u3002\u4eca\u5929\u7c73\u4e91\u5c31\u6574\u7406\u5206\u4eab\u300aPHP\u51fd\u6570\u5982\u4f55\u5b9e\u73b0\u9012\u5f52\u8c03\u7528\uff1f\u300b\uff0c\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec\uff0c\u5982\u679c\u4f60\u5bf9\u6587\u7ae0\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u5c31\u4e0d\u8981\u9519\u8fc7\u7c73\u4e91\uff0c\u5728\u8fd9\u53ef\u4ee5\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5f00\u53d1\u80fd\u529b\u7684\u63d0\u5347\u3002<\/p>\n<p>PHP \u4e2d\u53ef\u4ee5\u4f7f\u7528 call_user_func \u51fd\u6570\u5b9e\u73b0\u9012\u5f52\u8c03\u7528\uff0c\u901a\u8fc7\u8c03\u7528\u81ea\u8eab\u6765\u7b80\u5316\u590d\u6742\u95ee\u9898\u7684\u89e3\u51b3\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241028\/1730077966671ee50e72d7a.jpg\" class=\"aligncenter\" title=\"PHP\u51fd\u6570\u5982\u4f55\u5b9e\u73b0\u9012\u5f52\u8c03\u7528\uff1f\u63d2\u56fe\" alt=\"PHP\u51fd\u6570\u5982\u4f55\u5b9e\u73b0\u9012\u5f52\u8c03\u7528\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>PHP \u51fd\u6570\u5982\u4f55\u5b9e\u73b0\u9012\u5f52\u8c03\u7528<\/strong><\/p>\n<p>\u9012\u5f52\u662f\u4e00\u79cd\u51fd\u6570\u8c03\u7528\u81ea\u8eab\u7684\u4e00\u79cd\u6280\u672f\uff0c\u8fd9\u4f7f\u5f97\u89e3\u51b3\u590d\u6742\u95ee\u9898\u53d8\u5f97\u66f4\u52a0\u5bb9\u6613\u3002\u5728 PHP \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>call_user_func<\/code> \u51fd\u6570\u5b9e\u73b0\u9012\u5f52\u8c03\u7528\u3002<\/p>\n<p><strong>\u8bed\u6cd5\uff1a<\/strong><\/p>\n<pre>call_user_func(callable $callback, mixed $...): mixed<\/pre>\n<p><strong>\u53c2\u6570\uff1a<\/strong><\/p>\n<ul>\n<li><code>callback<\/code>: \u4e00\u4e2a\u6307\u5411\u8981\u8c03\u7528\u7684\u51fd\u6570\u7684\u56de\u8c03\u3002<\/li>\n<li><code>$...<\/code>: \u53ef\u53d8\u6570\u91cf\u7684\u53c2\u6570\uff0c\u5c06\u4f5c\u4e3a\u56de\u8c03\u51fd\u6570\u7684\u53c2\u6570\u4f20\u9012\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a PHP \u51fd\u6570\u8ba1\u7b97\u9636\u4e58\u7684\u9012\u5f52\u5b9e\u73b0\u793a\u4f8b\uff1a<\/p>\n<pre>&lt;?php\nfunction factorial($num)\n{\n    if ($num == 0) {\n        return 1;\n    } else {\n        return $num * call_user_func('factorial', $num - 1);\n    }\n}\n\n\/\/ \u793a\u4f8b\u7528\u6cd5\n$number = 5;\necho '\u9636\u4e58\u4e3a\uff1a' . factorial($number);<\/pre>\n<p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>factorial<\/code> \u51fd\u6570\u8c03\u7528\u81ea\u8eab\u6765\u8ba1\u7b97\u9636\u4e58\u3002\u5982\u679c <code>num<\/code> \u4e3a 0\uff0c\u51fd\u6570\u8fd4\u56de 1\uff08\u9636\u4e58\u7684\u57fa\u51c6\u60c5\u51b5\uff09\u3002\u5426\u5219\uff0c\u51fd\u6570\u5c06 <code>num<\/code> \u4e58\u4ee5\u9012\u5f52\u8c03\u7528 <code>factorial<\/code> \u51fd\u6570\u5e76\u4f20\u5165 <code>num - 1<\/code> \u4f5c\u4e3a\u53c2\u6570\u3002\u9012\u5f52\u8fc7\u7a0b\u4e00\u76f4\u6301\u7eed\u5230 <code>num<\/code> \u7b49\u4e8e 0\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\u7c73\u4e91\uff01\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP\u51fd\u6570\u5982\u4f55\u5b9e\u73b0\u9012\u5f52\u8c03\u7528\uff1f \u7f16\u7a0b\u5e76\u4e0d\u662f\u4e00\u4e2a\u673a\u68b0\u6027\u7684\u5de5\u4f5c\uff0c\u800c\u662f\u9700\u8981\u6709\u601d\u8003\uff0c\u6709\u521b\u65b0\u7684\u5de5\u4f5c\uff0c\u8bed\u6cd5\u662f\u56fa\u5b9a\u7684\uff0c\u4f46\u89e3\u51b3\u95ee\u9898\u7684\u601d\u8def\u5219\u662f\u4f9d\u9760\u4eba\u7684\u601d\u7ef4\uff0c\u8fd9\u5c31\u9700\u8981\u6211\u4eec\u575a\u6301\u5b66\u4e60\u548c\u66f4\u65b0\u81ea\u5df1\u7684\u77e5\u8bc6\u3002\u4eca\u5929\u7c73\u4e91\u5c31\u6574\u7406\u5206\u4eab\u300aPHP\u51fd\u6570\u5982\u4f55\u5b9e\u73b0\u9012\u5f52\u8c03\u7528\uff1f\u300b\uff0c\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec\uff0c\u5982\u679c\u4f60\u5bf9\u6587\u7ae0\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u5c31\u4e0d\u8981\u9519\u8fc7\u7c73\u4e91\uff0c\u5728\u8fd9\u53ef\u4ee5\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5f00\u53d1\u80fd\u529b\u7684\u63d0\u5347\u3002 PHP \u4e2d\u53ef\u4ee5\u4f7f\u7528 call_user_func \u51fd\u6570\u5b9e\u73b0\u9012\u5f52\u8c03\u7528\uff0c\u901a\u8fc7\u8c03\u7528\u81ea\u8eab\u6765\u7b80\u5316\u590d\u6742\u95ee\u9898\u7684\u89e3\u51b3\u3002 PHP \u51fd\u6570\u5982\u4f55\u5b9e\u73b0\u9012\u5f52\u8c03\u7528 \u9012\u5f52\u662f\u4e00\u79cd\u51fd\u6570\u8c03\u7528\u81ea\u8eab\u7684\u4e00\u79cd\u6280\u672f\uff0c\u8fd9\u4f7f\u5f97\u89e3\u51b3\u590d\u6742\u95ee\u9898\u53d8\u5f97\u66f4\u52a0\u5bb9\u6613\u3002\u5728 PHP \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 call_user_func \u51fd\u6570\u5b9e\u73b0\u9012\u5f52\u8c03\u7528\u3002 \u8bed\u6cd5\uff1a call_user_func(callable $callback, mixed $&#8230;): mixed \u53c2\u6570\uff1a callback: \u4e00\u4e2a\u6307\u5411\u8981\u8c03\u7528\u7684\u51fd\u6570\u7684\u56de\u8c03\u3002 $&#8230;: \u53ef\u53d8\u6570\u91cf\u7684\u53c2\u6570\uff0c\u5c06\u4f5c\u4e3a\u56de\u8c03\u51fd\u6570\u7684\u53c2\u6570\u4f20\u9012\u3002 \u5b9e\u6218\u6848\u4f8b\uff1a \u4ee5\u4e0b\u662f\u4e00\u4e2a PHP \u51fd\u6570\u8ba1\u7b97\u9636\u4e58\u7684\u9012\u5f52\u5b9e\u73b0\u793a\u4f8b\uff1a &lt;?php function factorial($num) { if ($num == 0) { return 1; } else { return $num * call_user_func(&#8216;factorial&#8217;, $num &#8211; 1); } } \/\/ \u793a\u4f8b\u7528\u6cd5 $number = [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-48554","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48554","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=48554"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/48554\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=48554"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=48554"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=48554"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}